Brand: Allen Bradley Description: DC Input Module Condition: Brand New Certificate: COO TEST REPORT WARRANTY LETTER Warranty: 1 year Inventory Qty: 15 Payment Term: T/T Shipping Port: Shenzhen Allen Bradley 1771-IBD s mainly used for I/O signal acquisition in industrial automation systems. It communicates with the processor through the 1771 series I/O chassis backplane, receives external DC input signals, and transmits them to the control system.
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Manufacture |
Allen Bradley |
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Model Number |
1771-IBD |
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Ordering Number |
1771-IBD |
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Catalog |
- |
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Country Of Origin |
Switzerland |
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HS CODE |
8471800000 |
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Dimension |
12*12*8cm |
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Weight |
0.4kg |
Product Features
Allen Bradley 1771-IBD is sensitive to electrostatic discharge and must be protected from damage by grounding, anti-static wristbands, and other measures. When not in use, it should be stored in its original electrostatic shielding packaging.
Allen Bradley 1771-IBD features adjustable filter delay, supporting 1ms or 6ms shutdown delay filter time (default 1ms), which can be set via jumpers on the circuit board to reduce input signal interference.
The front panel includes 1 green “module activation indicator light” (illuminates when powered) and 16 red “input status indicator lights” (corresponding to input terminals 00-17, illuminate when voltage is present).
Allen Bradley 1771-IBD can be connected to 2-wire or 3-wire input devices via the 1771-WH field wiring arm and supports current source mode.
Product Working Principle
Allen Bradley 1771-IBD can obtain power from the chassis power supply (130mA@5V DC) via the 1771 I/O chassis backplane. After receiving an external 10-30V DC input signal, it is filtered (according to the set 1ms/6ms delay) and converted into a digital signal, which is then transmitted to the processor via the backplane.
Allen Bradley 1771-IBD has a 2-wire device, with one end connected to terminals 00-17 and the other end connected to the DC positive terminal (+DC). Terminal E is connected to the DC common terminal (DC common).
Allen Bradley 1771-IBD has a 3-wire device that operates in current source mode. The wiring configuration is similar to the 2-wire device, with terminals A-D unused.
Its green “activation light” indicates normal module power supply, and the red “input status light” indicates that the corresponding terminal has voltage input and the signal is valid.
Product Parameter
The following detail is for Allen Bradley 1771-IBD DC Input Module.
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Category |
Specific Parameters |
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Input Voltage Range |
10-30V DC |
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Input Current |
4.5mA at 10V 15mA at 30V 2.0mA at 5V |
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Propagation Delay |
Low to High: 1ms High to Low: selectable 1ms or 6ms (set via jumper) |
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Power Requirement |
Obtained from the I/O chassis backplane, requiring 130mA@5V DC (±5%) |
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Power |
Maximum 7.3W (24.7 BTU/hr), minimum 1.0W (3.4 BTU/hr) |
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Isolation Standard |
Complies with UL 508 and CSA C22.2 No.142 |
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Wiring Specification |
Maximum 14 gauge (2mm²) stranded wire, maximum insulation thickness 3/64 inch (1.2mm) |
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Backplane Connector Key |
Key band positions: between 10-12, between 16-18 |
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Matching Wiring Arm |
1771-WH |
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Torque Requirement |
7-9 inch-pounds |
